hawkboard: Update config file to work with common spl framework

The common spl framework expects the u-boot payload size through
CONFIG_SYS_MONITOR_LEN. Define the macro with the u-boot's size. With
this change, CONFIG_SYS_NAND_U_BOOT_SIZE is no longer required. Delete
the same.

Signed-off-by: Tom Rini <trini@ti.com>
Signed-off-by: Sughosh Ganu <urwithsughosh@gmail.com>

include/configs/hawkboard.h

@@ -80,6 +80,7 @@
 #define CONFIG_MAX_RAM_BANK_SIZE	(512 << 20)
 #define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_SDRAM_BASE + 0x1000 -\
 					GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_MONITOR_LEN		0x60000
 
 /* memtest start addr */
 #define CONFIG_SYS_MEMTEST_START	(PHYS_SDRAM_1)
@@ -137,7 +138,6 @@
 #define CONFIG_SYS_NAND_PAGE_SIZE	(2 << 10)
 #define CONFIG_SYS_NAND_BLOCK_SIZE	(128 << 10)
 #define CONFIG_SYS_NAND_U_BOOT_OFFS	0xe0000
-#define CONFIG_SYS_NAND_U_BOOT_SIZE	0x60000
 #define CONFIG_SYS_NAND_U_BOOT_DST	0xc1180000
 #define CONFIG_SYS_NAND_U_BOOT_START	CONFIG_SYS_NAND_U_BOOT_DST
 #define CONFIG_SYS_NAND_U_BOOT_RELOC_SP	(CONFIG_SYS_NAND_U_BOOT_DST - \